Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Transient Absorption Spectra of Phenothiazine Derivative in the Vesicle System Containing Ru$^{2+}$ Complex as a Sensitizer

  • Park, Yong-Tae (Kyungpook National University, Department of Chemistry) ;
  • Kim, Young-Doo (Kyungpook National University, Department of Chemistry) ;
  • Burkhart, Richard D. (University of Nevada, Department of Chemistry) ;
  • Caldwell, Norris J. (University of Nevada, Department of Chemistry)
  • Published : 1988.04.20
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Abstract

The Photophysical and photochemical properties of Ruthenium bipyridine with two long hydrocarbon chains, $[Ru(bipy)_2(dhbipy)]^{2+}$ and transient phenothiazine derivative cation radical $(PTD^+)$ in the cationic vesicle were studied. Transient absorption spectra of cation radical of phenothiazine derivative in the vesicle system containing the $Ru^{2+}$ complex, $[Ru(bipy)_2(dhbipy)]^{2+}$, (1) as sensitizer and phenothiazine derivative as electron donor was observed by XeCl excimer laser photolysis system. Thus the excited ruthenium complex would be quenched by phenothiazine derivative(PTD) reductively in the vesicle system. The quenching rate constant($K_Q$) of $Ru^{2+}$ with two long hydrocarbon chains in the vesicle by PTD was $9.6{\times}10^8M^{-1}S^{-1}$. The absorption decay kinetics showed that lifetime of phenothiazine derivative cation radical is a value in the 4-8m sec range.

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References

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Cited by

  1. ChemInform Abstract: Transient Absorption Spectra of Phenothiazine Derivative in the Vesicle System Containing Ru2+ Complex as a Sensitizer vol.19, pp.36, 1988, https://doi.org/10.1002/chin.198836110